C++ (Cpp) ShouldProcessMouseClick Examples

Example #1

File: nsFileControlFrame.cpp Project: Lynart/mozilla-central

/**
 * This is called when we receive any registered events on the control.
 * We've only registered for drop, dragover and click events.
 */
NS_IMETHODIMP
nsFileControlFrame::BrowseMouseListener::HandleEvent(nsIDOMEvent* aEvent)
{
  NS_ASSERTION(mFrame, "We should have been unregistered");

  nsAutoString eventType;
  aEvent->GetType(eventType);
  if (eventType.EqualsLiteral("click")) {
    if (!ShouldProcessMouseClick(aEvent))
      return NS_OK;
    
    nsHTMLInputElement* input =
      nsHTMLInputElement::FromContent(mFrame->GetContent());
    return input ? input->FireAsyncClickHandler() : NS_OK;
  }

  bool defaultPrevented = false;
  aEvent->GetPreventDefault(&defaultPrevented);
  if (defaultPrevented) {
    return NS_OK;
  }
  
  nsCOMPtr<nsIDOMDragEvent> dragEvent = do_QueryInterface(aEvent);
  if (!dragEvent || !IsValidDropData(dragEvent)) {
    return NS_OK;
  }

  if (eventType.EqualsLiteral("dragover")) {
    // Prevent default if we can accept this drag data
    aEvent->PreventDefault();
    return NS_OK;
  }

  if (eventType.EqualsLiteral("drop")) {
    aEvent->StopPropagation();
    aEvent->PreventDefault();

    nsIContent* content = mFrame->GetContent();
    NS_ASSERTION(content, "The frame has no content???");

    nsHTMLInputElement* inputElement = nsHTMLInputElement::FromContent(content);
    NS_ASSERTION(inputElement, "No input element for this file upload control frame!");

    nsCOMPtr<nsIDOMDataTransfer> dataTransfer;
    dragEvent->GetDataTransfer(getter_AddRefs(dataTransfer));

    nsCOMPtr<nsIDOMFileList> fileList;
    dataTransfer->GetFiles(getter_AddRefs(fileList));

    
    inputElement->SetFiles(fileList, true);
    inputElement->FireChangeEventIfNeeded();
  }

  return NS_OK;
}

Example #2

/**
 * This is called when our browse button is clicked
 */
NS_IMETHODIMP
nsFileControlFrame::BrowseMouseListener::MouseClick(nsIDOMEvent* aMouseEvent)
{
    NS_ASSERTION(mFrame, "We should have been unregistered");
    if (!ShouldProcessMouseClick(aMouseEvent))
        return NS_OK;

    nsHTMLInputElement* input =
        nsHTMLInputElement::FromContent(mFrame->GetContent());
    return input ? input->FireAsyncClickHandler() : NS_OK;
}

Example #3

File: nsFileControlFrame.cpp Project: Lynart/mozilla-central

/**
 * This is called when our capture button is clicked
 */
NS_IMETHODIMP
nsFileControlFrame::CaptureMouseListener::HandleEvent(nsIDOMEvent* aMouseEvent)
{
  nsresult rv;

  NS_ASSERTION(mFrame, "We should have been unregistered");
  if (!ShouldProcessMouseClick(aMouseEvent))
    return NS_OK;

  // Get parent nsPIDOMWindow object.
  nsIContent* content = mFrame->GetContent();
  if (!content)
    return NS_ERROR_FAILURE;

  nsHTMLInputElement* inputElement = nsHTMLInputElement::FromContent(content);
  if (!inputElement)
    return NS_ERROR_FAILURE;

  nsCOMPtr<nsIDocument> doc = content->GetDocument();
  if (!doc)
    return NS_ERROR_FAILURE;

  // Get Loc title
  nsXPIDLString title;
  nsContentUtils::GetLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
                                     "MediaUpload", title);

  nsPIDOMWindow* win = doc->GetWindow();
  if (!win) {
    return NS_ERROR_FAILURE;
  }

  nsCOMPtr<nsICapturePicker> capturePicker;
  capturePicker = do_CreateInstance("@mozilla.org/capturepicker;1");
  if (!capturePicker)
    return NS_ERROR_FAILURE;

  rv = capturePicker->Init(win, title, mMode);
  NS_ENSURE_SUCCESS(rv, rv);

  // Show dialog
  uint32_t result;
  rv = capturePicker->Show(&result);
  NS_ENSURE_SUCCESS(rv, rv);
  if (result == nsICapturePicker::RETURN_CANCEL)
    return NS_OK;

  if (!mFrame) {
    // The frame got destroyed while the filepicker was up.  Don't do
    // anything here.
    // (This listener itself can't be destroyed because the event listener
    // manager holds a strong reference to us while it fires the event.)
    return NS_OK;
  }

  nsCOMPtr<nsIDOMFile> domFile;
  rv = capturePicker->GetFile(getter_AddRefs(domFile));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMArray<nsIDOMFile> newFiles;
  if (domFile) {
    newFiles.AppendObject(domFile);
  } else {
    return NS_ERROR_FAILURE;
  }

  // XXXkhuey we really should have a better UI story than the tired old
  // uneditable text box with the file name inside.
  // Set new selected files
  if (newFiles.Count()) {
    // Tell our input element that this update of the value is a user
    // initiated change. Otherwise it'll think that the value is being set by
    // a script and not fire onchange when it should.
   
    inputElement->SetFiles(newFiles, true);
    
    // Should fire a change event here since the SetFiles() call above ensures 
    // a different value from the mFocusedValue of the inputElement. 
    inputElement->FireChangeEventIfNeeded();
  }

  return NS_OK;
}